The decreasing of polygalacturonase(PG),cellulose(CX),xylanase(Xyn),and peroxidase(POD)activities maybe low the decomposition of protopectin,hemicellulose and cellulose,increase peel hardness and thickness,low pitting fruit incidence.
果皮果胶酶、纤维素酶、木聚糖酶、过氧化物酶活性的降低可以减缓果皮原果胶、纤维素和半纤维素成分的降解,降低果实成熟过程中果皮软化的速度,减少陷痕果的发生。
参考来源 - 磷酸二氢钾对脐橙陷痕果发生及果皮细胞壁代谢的影响